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121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
// -*- C++ -*-
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//=============================================================================
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/**
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* @file Auto_Functor.h
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*
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* $Id: Auto_Functor.h 92386 2010-10-28 07:44:37Z johnnyw $
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*
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* @author Carlos O'Ryan <coryan@atdesk.com>
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*/
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//=============================================================================
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#ifndef ACE_AUTO_FUNCTOR_H
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#define ACE_AUTO_FUNCTOR_H
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#include /**/ "ace/pre.h"
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#include /**/ "ace/config-all.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#include "ace/Global_Macros.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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namespace ACE_Utils
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{
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/**
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* @class Auto_Functor_Ref
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*
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* @brief Helper class to implement assignment and copy-construction
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* as expected
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*/
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template<typename X, typename Functor>
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struct Auto_Functor_Ref
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{
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X * p_;
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Functor f_;
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Auto_Functor_Ref(X * p, Functor f);
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};
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/**
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* @class Auto_Functor
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*
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* @brief Helper template to implement auto_ptr<>-like classes, but
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* executing a functor in the destructor, instead of always
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* deleting things.
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*
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* The functor is called in the destructor, and it must implement:
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*
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* Functor() throw();<BR>
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* Functor(Functor const &) throw();<BR>
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* Functor & operator=(Functor const &) throw();<BR>
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* void operator()(X * p) throw();<BR>
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*
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*/
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template<typename X, typename Functor>
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class Auto_Functor
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{
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public:
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typedef X element_type;
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typedef Functor functor_type;
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/// Constructor
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explicit Auto_Functor (X * p = 0,
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Functor functor = Functor()); // throw()
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Auto_Functor (Auto_Functor & rhs); // throw()
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Auto_Functor<X,Functor>& operator= (Auto_Functor & rhs); // throw()
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template<typename Y>
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Auto_Functor(Auto_Functor<Y,Functor>& rhs); // throw()
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template<typename Y>
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Auto_Functor<X,Functor>& operator= (Auto_Functor<Y,Functor>& rhs); // throw()
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~Auto_Functor(); // throw()
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X & operator*() const; // throw()
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X * operator->() const; // throw()
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X * get(); // throw()
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X * release(); // throw()
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void reset (X * p = 0); // throw()
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void reset (X * p, Functor f); // throw()
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Functor const & functor() const; // throw()
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Auto_Functor(Auto_Functor_Ref<X,Functor> rhs); // throw()
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Auto_Functor<X,Functor> & operator=(Auto_Functor_Ref<X,Functor> rhs); // throw()
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template<typename Y> operator Auto_Functor_Ref<Y,Functor>(); // throw()
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template<typename Y> operator Auto_Functor<Y,Functor>(); // throw()
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private:
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X * p_;
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Functor f_;
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};
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} // namespace ACE_Utils
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ACE_END_VERSIONED_NAMESPACE_DECL
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#if defined(__ACE_INLINE__)
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# include "ace/Auto_Functor.inl"
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#endif /* __ACE_INLINE__ */
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#if defined(ACE_TEMPLATES_REQUIRE_SOURCE)
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# include "ace/Auto_Functor.cpp"
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#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
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#include /**/ "ace/post.h"
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#endif /* ACE_AUTO_FUNCTOR_H*/
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